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Real-time moving target tracking method based on global matching similarity function

A similarity function and moving target technology, applied in the field of real-time moving target tracking, can solve the problems of high false alarm rate and low reliability

Active Publication Date: 2010-04-14
内蒙古盛邦北斗卫星信息服务有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the disadvantages of low reliability and high false alarm rate of the existing moving target tracking and matching algorithm, and propose a real-time moving target tracking method based on the global matching similarity function

Method used

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  • Real-time moving target tracking method based on global matching similarity function
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  • Real-time moving target tracking method based on global matching similarity function

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Embodiment Construction

[0040] Such as figure 1 Shown, the concrete realization steps of the present invention are as follows:

[0041] (1) The parameters for initializing the moving target tracking include the size of the video image 352×288 pixels, the minimum value N of the number of pixels included in the target (100 in the present embodiment), and the threshold T of the target similarity (0.95 in the present embodiment). The coefficient α corresponding to the proximity of the matching target center position (0.3 in this embodiment) and the coefficient β corresponding to the proximity of the total number of pixels contained in the target to be matched (0.3 in this embodiment), the similarity of the color histogram of the target to be matched The corresponding coefficient γ (take 0.4 in this embodiment), the gain coefficient κ of the proximity function threshold of the center position (take 10 in this embodiment); the time length S of the previous target set (take 4 seconds in this embodiment).

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Abstract

A real-time moving target tracking method based on a global matching similarity function increases reliability of target color distribution by building improved color histogram models on the basis of real-time detecting moving targets, and constructs the global matching similarity function according to positions, sizes and colors of the moving targets so as to track the moving targets reliably. The specific steps includes: firstly, initializing tracking parameters of the real-time moving targets, secondarily, building the improved color histogram model for each detected real-time moving target, thirdly, forming to-be-matched moving target pairs by the current detected moving targets and the previously detected moving targets, building a color histogram similarity function, a central position closeness degree function and a pixel point sum closeness degree function for each to-be-matched moving target, and finally, building the global matching similarity function to track the real-time moving targets. The real-time moving target tracking method increases reliability of tracking moving targets, can effectively resolve a problem that the targets are shielded and an automatic correlation problem when the targets are blended and then separated again.

Description

technical field [0001] The invention relates to a real-time moving target tracking method, in particular to a real-time moving target tracking method based on a similarity function of global matching of moving targets, which is suitable for tracking moving targets in videos. Background technique [0002] With the development of economy and technology and the threat of "three evil forces" to social security and stability, people have put forward higher requirements for the safety of living and office environments; the safe operation and protection of key targets and areas in the military and civilian fields and Higher requirements are put forward for the security of historical sites and museums of cultural relics. The common method of monitoring these key targets and areas is video surveillance. When there is a target intrusion, the system can promptly and accurately alarm, and the low false alarm is the key to evaluating the quality of the system. The reliability of moving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/20
Inventor 何信华赵龙
Owner 内蒙古盛邦北斗卫星信息服务有限公司
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